Sirotkin believes the Bahrain GP weekend helped Williams identify a number of their problems and says the team are working flat out to find solutions.

"We have a few different issues in different areas that we have to work on. I wouldn't say that it's done and now we are brilliant but the weekend in Bahrain helped us point out those areas so now we start to think more about those things and how to solve them.

"I won't promise how soon or how big the step is going to be, but I can promise that every single guy in the team is putting maximum effort into maximising what we can do."